ARM: 5989/1: ARM: KGDB: add support for SMP platforms (5d8614cc) · Commits · 戴 / test

To support SMP platforms, KGDB requires the architecture backend to implement the kgdb_roundup_cpus function. This patch, taken against 2.6.33, implements the function for ARM based on the MIPS port. Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Jean-Michel Hautbois <jhautbois@gmail.com> Cc: KGDB Mailing List <kgdb-bugreport@lists.sourceforge.net> Signed-off-by:

Will Deacon <will.deacon@arm.com> Signed-off-by:

Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/kernel/kgdb.c

+13 −0

Original line number	Diff line number	Diff line
		@@ -9,6 +9,7 @@
		* Authors: George Davis <davis_g@mvista.com>
		* Deepak Saxena <dsaxena@plexity.net>
		*/
		#include <linux/irq.h>
		#include <linux/kgdb.h>
		#include <asm/traps.h>

		@@ -158,6 +159,18 @@ static struct undef_hook kgdb_compiled_brkpt_hook = {
		.fn = kgdb_compiled_brk_fn
		};

		static void kgdb_call_nmi_hook(void *ignored)
		{
		kgdb_nmicallback(raw_smp_processor_id(), get_irq_regs());
		}

		void kgdb_roundup_cpus(unsigned long flags)
		{
		local_irq_enable();
		smp_call_function(kgdb_call_nmi_hook, NULL, 0);
		local_irq_disable();
		}

		/**
		* kgdb_arch_init - Perform any architecture specific initalization.
		*

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